CN102477178A - Low-smoke halogen-free flame-retardant antistatic aging-resistant wire and cable material and its preparation method - Google Patents
Low-smoke halogen-free flame-retardant antistatic aging-resistant wire and cable material and its preparation method Download PDFInfo
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- CN102477178A CN102477178A CN2010105555253A CN201010555525A CN102477178A CN 102477178 A CN102477178 A CN 102477178A CN 2010105555253 A CN2010105555253 A CN 2010105555253A CN 201010555525 A CN201010555525 A CN 201010555525A CN 102477178 A CN102477178 A CN 102477178A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The present invention discloses low-smoke halogen-free flame-retardant antistatic aging-resistant wire and cable material and its preparation method. The wire and cable material comprises (by weight parts) polyethylene 60-80, ethylene-vinyl acetate copolymer 10-20, coated ammonium polyphosphate 20-40, pentaerythritol 10-20, a nitrogen flame retardant 8-15, a composite inorganic flame retardant 50-90, a lubricant 2-5, a compatilizer 5-10, a crosslinking additive 0-3, an antistatic agent 0.2-0.8, an antiager 0.3-0.6, an auxiliary antioxidant 0-0.3, and a metal passivator 0-0.5. Compared with the prior art, the inventive wire and cable material has good high-temperature resistance, high strength, high elongation, high flame retardancy, antistatic property, aging resistance and harmlessness, and is widely applicable for electric power, building, communication and manufacture fields.
Description
Technical field
The invention belongs to the polymer modification technical field, be specifically related to antistatic ageing-resistant wire cable material of a kind of low-smoke non-halogen flame-retardant and preparation method thereof.
Background technology
Wires and cables industry is the second largest industry that China is only second to automobile industry, and range of product satisfies rate and home market occupation rate all above 90%.Worldwide, China's electric wire gross output value has surpassed the U.S., becomes first in the world electric wire producing country.Be accompanied by China's wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.Present domestic polyvinyl chloride wire cable material commonly used, it have high temperature resistant, intensity is better, elongation is higher, fire-retardant better, in case but a large amount of dense smokes, chlorine are arranged during presence of fire, cause more loss of life and personal injury, temperature is high be prone to aging, antistatic property difference etc.Key cities such as China Beijing, Shanghai clearly stipulate: important building bans use of polyvinyl chloride electrical wire and cable; A large amount of dense smokes, chlorine when avoiding fire to take place; Cause more loss of life and personal injury; Adopt halide-free smokeless cross-linked polyolefin electric wire to become these geographic local regulations, along with the increase of environmental consciousness, the application meeting of this type electric wire progressively enlarges.
The wires and cables industry product category is numerous, and range of application very extensively relates to industries such as electric power, building, communication, manufacturing, and is all closely related with each department of national economy.Electric wire also is called as national economy " artery " and " nerve "; Be transmission of electric energy, transmission information and make various motors, instrument, instrument; Realizing the indispensable basic equipment of electromagnetic energy conversion, is necessary base product in following electrification, the informationized society.Especially national in the fast development as China, the huge demand that construction work and auxiliary facility are built is self-evident.Along with China's economy increases continuously and healthily; For cable products provides the huge market space; China market intensive incentive; Make the world all focus on China market to sight, reforming and opening up to the outside world short decades that the formed huge throughput of China's cable production lets the world regard with special esteem.Be accompanied by China's wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased, and has also attracted foreign capitals quite a lot to move into China.Along with the promulgation RoHS of European Union instruction, the research and development of ecological, environmental protective electric wire and wide-scale adoption have become international trend.Fire-retardant both at home and abroad at present, fire prevention, antistatic, ageing-resistant pollution-free cable application have expanded a lot of fields to, with cable performance requriements are in various degree arranged all like mining Plastic-sheathed Cable, elevator cable, household electrical appliance.
Therefore developing the antistatic ageing-resistant wire cable material of a kind of novel low-smoke non-halogen flame-retardant, is the necessary means of opening home market and protection environment.
Summary of the invention
In order to overcome the defective that above-mentioned prior art exists, the purpose of this invention is to provide the antistatic ageing-resistant wire cable material of a kind of novel low-smoke non-halogen flame-retardant.
Another object of the present invention provides the preparation method of the antistatic ageing-resistant wire cable material of above-mentioned low-smoke non-halogen flame-retardant.
Technical scheme of the present invention is following:
The invention provides the antistatic ageing-resistant wire cable material of a kind of low-smoke non-halogen flame-retardant, this material comprises following component and weight part: 60～80 parts of Vilaterm, 10～20 parts of ethylene; 20～40 parts of coated ammonium polyphosphates, 10～20 parts of tetramethylolmethanes, 8～15 parts of nitrogen flame retardants; 50～90 parts of composite inorganic fire retardants, 2～5 parts of lubricants, 5～10 parts of compatilizers; 0～3 part of crosslinking coagent, 02～0.8 part in static inhibitor, 0.3～0.6 part in anti-aging agent; 0～0.3 part of auxiliary antioxidant, 0～0.5 part of metal passivator.
Described Vilaterm is selected from linear low density polyethylene.
Described ethylene (EVA) is selected from the EVA that contains vinyl-acetic ester (VA) 15%.
Described coated ammonium polyphosphate is selected from a kind of in melamine-formaldehyde coated ammonium polyphosphate, epoxy resin coated ammonium polyphosphate, unsaturated polyester coated ammonium polyphosphate, EVA coated ammonium polyphosphate, the polyurethane elastomer coated ammonium polyphosphate.
Described nitrogen flame retardant is selected from a kind of in trimeric cyanamide, melamine cyanurate, melamine phosphate, melamine polyphosphate, melamine pyrophosphate, trimeric cyanamide octamolybdate, the melamine borate salt.
Described composite inorganic fire retardant is selected from a group in white lake and zinc borate, Marinco H and the zinc borate.
The preferred white lake of described composite inorganic fire retardant and zinc borate, wherein white lake: the mass ratio of zinc borate is 2: 1～3: 1.
White lake sieves through 500 orders in the described composite inorganic fire retardant.
Described lubricant is selected from a kind of in dimethyl silicone oil, lubricating oil, graphite, molybdenumdisulphide, the silicone oil.
Described compatilizer is selected from a kind of in maleic anhydride inoculated polypropylene, acrylic acid-grafted polypropylene, maleic anhydride grafted polyethylene, acrylic acid-grafted Vilaterm, maleic anhydride graft EPDM, maleic anhydride graft EVA, the acrylic acid-grafted ethylene-octene copolymer.
Described crosslinking coagent is selected from 2,5-dimethyl--2, a kind of in 5-two (tert-butyl peroxy base) hexane, peroxo-phenyl-diformyl, Di Cumyl Peroxide 99, the cyamelide triallyl.
Described static inhibitor is selected from a kind of among terepthaloyl moietie lauric amide, sodium sulphonate, static inhibitor SN (octadecyl dimethyl-hydroxyethyl quaternary ammonium nitrate salt), static inhibitor HK (compound polyvinyl chloride static inhibitor), the static inhibitor HZ-1 (organic amine static inhibitor).
Described anti-aging agent is selected from N; N '-two (betanaphthyl) Ursol D, thio-2 acid octadecyl ester, antioxidant 1010 ([β-(3; 5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester), a kind of in the antioxidant 2246 (2,2 '-methylene-bis-(4-methyl-6-tert butyl phenol)).
Described auxiliary antioxidant is selected from anti-oxidant DLTP (Tyox B), antioxidant 1076 (β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant CA (1; 1,3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane) a kind of in.
Described metal passivator is selected from a kind of in oxalic acid two hydrazides, benzotriazole, the salicylidene quadrol.
The present invention also provides the preparation method of the antistatic ageing-resistant wire cable material of a kind of above-mentioned low-smoke non-halogen flame-retardant, may further comprise the steps:
(1) 60～80 parts of base materials with 10～20 parts of compositions of ethylene of Vilaterm was mixed in whisking appliance 2～5 minutes; With stirring 3～8 minutes in 20～40 parts of coated ammonium polyphosphates, 10～20 parts of tetramethylolmethanes, 8～15 parts of nitrogen flame retardants, composite inorganic fire retardant (50～90 parts), 2～5 parts of lubricants, 5～10 parts of adding whisking appliances of compatilizer, above-mentioned mixed component was mixed 3～8 minutes with all the other components (0～3 part of crosslinking coagent, 0.2～0.8 part in static inhibitor, 0.3～0.6 part in anti-aging agent, 0～0.3 part of auxiliary antioxidant, 0～0.5 part of metal passivator) restir;
(2) mediated 1～2 hour at 190～210 ℃, the kneader rotating speed is 640～980r/min, and pulverizes;
(3) again with above-mentioned blending ingredients through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with rumbatron again and make it to take place crosslinking reaction and form.
Described forcing machine L/D=20: 1～25: 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.
The present invention compared with prior art has following advantage and beneficial effect:
1, the present invention adopts the method for the antistatic ageing-resistant wire cable material of low-smoke non-halogen flame-retardant; Make that the low cigarette of wire cable material is not halogen-containing environmentally friendly; The request for utilization that intensity is high, elongation satisfies cable well; Antistatic, the ageing-resistant Application Areas of cable that makes is more extensive, and fire-retardant fireproof property is good, can reach the V-0 grade standard of UL-94.
2, material of the present invention can be widely used in numerous national economy fields such as electric power, building, communication, manufacturing.According to the relevent statistics, wires and cables industry is the second largest industry that China is only second to automobile industry, and range of product satisfies rate and home market occupation rate all above 90%.Worldwide, China's electric wire gross output value has surpassed the U.S., becomes first in the world electric wire producing country.The antistatic ageing-resistant wire cable material of low-smoke non-halogen flame-retardant after this optimization modification makes cable more superior, durable, this shows that optimizing modification will bring the great market space to China cable material market.
Embodiment
Below in conjunction with illustrated embodiment the present invention is further described.
Adopt GB (GB) to measure each item performance of material among the embodiment, if no special instructions, the umber of component is parts by weight.
Embodiment 1
Earlier the base material of 60 parts of linear low density polyethylenes and 15 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 8 parts of adding whisking appliances of 3 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 20 parts of epoxy resin coated ammonium polyphosphates, 12 parts of tetramethylolmethanes, 10 parts of trimeric cyanamide urea hydrochlorates, 60 parts in white lake and 25 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1.5 parts of cyamelide triallyls, 0.3 part of terepthaloyl moietie lauric amide, 0.5 part of antioxidant 1010,0.1 part of auxiliary antioxidant DLTP, 0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 200 ℃, and pulverize kneader rotating speed 840r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1.
Embodiment 2
Earlier the base material of 75 parts of linear low density polyethylenes and 20 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.5 parts of adding whisking appliances of 2 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 25 parts of epoxy resin coated ammonium polyphosphates, 15 parts of tetramethylolmethanes, 12 parts of trimeric cyanamide urea hydrochlorates, 55 parts in white lake and 20 parts of compositions of zinc borate, above-mentioned mixed component was mixed 8 minutes with all the other components (0.5 part of cyamelide triallyl, 0.3 part of terepthaloyl moietie lauric amide, 0.4 part of antioxidant 1010,0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 195 ℃, and pulverize kneader rotating speed 700r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1.
Embodiment 3
Earlier the base material of 70 parts of linear low density polyethylenes and 15 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.8 parts of adding whisking appliances of 1.5 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 25 parts of epoxy resin coated ammonium polyphosphates, 10 parts of tetramethylolmethanes, 8 parts of trimeric cyanamide urea hydrochlorates, 52 parts in white lake and 21 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1 part of cyamelide triallyl, 0.5 part of terepthaloyl moietie lauric amide, 0.3 part of antioxidant 1010,0.2 part of auxiliary antioxidant DLTP, 0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 190 ℃, and pulverize kneader rotating speed 900r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Embodiment 4
Earlier the base material of 70 parts of linear low density polyethylenes and 18 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.5 parts of adding whisking appliances of 2 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 20 parts of epoxy resin coated ammonium polyphosphates, 10 parts of tetramethylolmethanes, 8 parts of trimeric cyanamide urea hydrochlorates, 45 parts in white lake and 15 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1.5 parts of cyamelide triallyls, 0.6 part of terepthaloyl moietie lauric amide, 0.5 part of antioxidant 1010,0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 195 ℃, and pulverize kneader rotating speed 780r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Embodiment 5
Earlier the base material of 78 parts of linear low density polyethylenes and 20 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 9.5 parts of adding whisking appliances of 5 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 35 parts of epoxy resin coated ammonium polyphosphates, 15 parts of tetramethylolmethanes, 12 parts of trimeric cyanamide urea hydrochlorates, 55 parts in white lake and 22 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (2 parts of cyamelide triallyls, 0.6 part of terepthaloyl moietie lauric amide, 0.5 part of antioxidant 1010,0.2 part of auxiliary antioxidant DLTP, 0.5 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 200 ℃, and pulverize kneader rotating speed 920r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Embodiment 6
Earlier the base material of 75 parts of linear low density polyethylenes and 18 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.5 parts of adding whisking appliances of 3 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 30 parts of epoxy resin coated ammonium polyphosphates, 12 parts of tetramethylolmethanes, 10 parts of trimeric cyanamide urea hydrochlorates, 50 parts in white lake and 20 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1.5 parts of cyamelide triallyls, 0.8 part of terepthaloyl moietie lauric amide, 0.6 part of antioxidant 1010,0.3 part of auxiliary antioxidant DLTP, 0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 195 ℃, and pulverize kneader rotating speed 780r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Comparative example 1
Earlier the base material of 75 parts of linear low density polyethylenes and 18 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.5 parts of adding whisking appliances of 3 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 30 parts of epoxy resin coated ammonium polyphosphates, 12 parts of tetramethylolmethanes, 10 parts of trimeric cyanamide urea hydrochlorates, 50 parts in white lake and 20 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1.5 parts of cyamelide triallyls, 0.6 part of antioxidant 1010,0.3 part of auxiliary antioxidant DLTP, 0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 200 ℃, and pulverize kneader rotating speed 880r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Comparative example 2
Earlier the base material of 75 parts of linear low density polyethylenes and 18 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 7.5 parts of adding whisking appliances of 3 parts of composite inorganic fire retardant, lubricating oil, maleic anhydride graft EVA of 30 parts of epoxy resin coated ammonium polyphosphates, 12 parts of tetramethylolmethanes, 10 parts of trimeric cyanamide urea hydrochlorates, 50 parts in white lake and 20 parts of compositions of zinc borate, above-mentioned mixed component was mixed 5 minutes with all the other components (1.5 parts of cyamelide triallyls, 0.8 part of terepthaloyl moietie lauric amide, 0.2 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 195 ℃, and pulverize kneader rotating speed 880r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1
Comparative example 3
Earlier the base material of 78 parts of linear low density polyethylenes and 20 parts of compositions of ethylene thorough mixing 3 minutes in whisking appliance; With stirring 5 minutes in 5 parts of lubricating oil, 9.5 parts of adding whisking appliances of maleic anhydride graft EVA, above-mentioned mixed component was mixed 5 minutes with all the other components (2 parts of cyamelide triallyls, 0.6 part of terepthaloyl moietie lauric amide, 0.5 part of antioxidant 1010,0.2 part of auxiliary antioxidant DLTP, 0.5 part of oxalic acid two hydrazides) restir.Mediated 1.5 hours down at 200 ℃, and pulverize kneader rotating speed 850r/min.Again with the blending ingredients behind the above-mentioned thorough mixing through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with 500kV transformer type rumbatron again and make it to take place crosslinking reaction and form.Forcing machine L/D=(20～25): 1, rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.Each item performance measurement result such as table 1.
Find out that by each association in the table 1 over-all properties of embodiment 5,6 products obtained therefroms is better, meets product requirement.Do not add static inhibitor in the Comparative Examples 1 and make small product size resistivity very big, static resistance is poor; Comparative Examples 2 does not add anti-aging agent makes the product heat resisting temperature very low, and stability to aging is bad; Comparative Examples 3 does not add coated ammonium polyphosphate, tetramethylolmethane, nitrogen flame retardant, composite inorganic fire retardant makes the product oxygen index very low, and flame retardant resistance does not reach the product performance requirement.
The above-mentioned description to embodiment is can understand and use the present invention for ease of the those of ordinary skill of this technical field.The personnel of skilled obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Table 1
Claims (10)
1. antistatic ageing-resistant wire cable material of low-smoke non-halogen flame-retardant, it is characterized in that: this material comprises following component and weight part: 60～80 parts of Vilaterm, 10～20 parts of ethylene; 20～40 parts of coated ammonium polyphosphates, 10～20 parts of tetramethylolmethanes, 8～15 parts of nitrogen flame retardants; 50～90 parts of composite inorganic fire retardants, 2～5 parts of lubricants, 5～10 parts of compatilizers; 0～3 part of crosslinking coagent, 0.2～0.8 part in static inhibitor, 0.3～0.6 part in anti-aging agent; 0～0.3 part of auxiliary antioxidant, 0～0.5 part of metal passivator.
2. wire cable material according to claim 1 is characterized in that: described Vilaterm is selected from linear low density polyethylene; Described ethylene is selected from the EVA that contains vinyl-acetic ester 15%; Described coated ammonium polyphosphate is selected from a kind of in melamine-formaldehyde coated ammonium polyphosphate, epoxy resin coated ammonium polyphosphate, unsaturated polyester coated ammonium polyphosphate, EVA coated ammonium polyphosphate, the polyurethane elastomer coated ammonium polyphosphate.
3. wire cable material according to claim 1 is characterized in that: described nitrogen flame retardant is selected from a kind of in trimeric cyanamide, melamine cyanurate, melamine phosphate, melamine polyphosphate, melamine pyrophosphate, trimeric cyanamide octamolybdate, the melamine borate salt.
4. wire cable material according to claim 1 is characterized in that: described composite inorganic fire retardant is selected from a group in white lake and zinc borate, Marinco H and the zinc borate.
5. wire cable material according to claim 1 is characterized in that: described lubricant is selected from a kind of in dimethyl silicone oil, lubricating oil, graphite, molybdenumdisulphide, the silicone oil; Described compatilizer is selected from a kind of in maleic anhydride inoculated polypropylene, acrylic acid-grafted polypropylene, maleic anhydride grafted polyethylene, acrylic acid-grafted Vilaterm, maleic anhydride graft EPDM, maleic anhydride graft EVA, the acrylic acid-grafted ethylene-octene copolymer.
6. wire cable material according to claim 1 is characterized in that: described crosslinking coagent is selected from 2,5-dimethyl--2, a kind of in 5-two (tert-butyl peroxy base) hexane, peroxo-phenyl-diformyl, Di Cumyl Peroxide 99, the cyamelide triallyl.
7. wire cable material according to claim 1 is characterized in that: described static inhibitor is selected from a kind of among terepthaloyl moietie lauric amide, sodium sulphonate, static inhibitor SN, static inhibitor HK, the static inhibitor HZ-1.
8. wire cable material according to claim 1 is characterized in that: described anti-aging agent is selected from N, a kind of in N '-two (betanaphthyl) Ursol D, thio-2 acid octadecyl ester, antioxidant 1010, the antioxidant 2246; Described auxiliary antioxidant is selected from a kind of in anti-oxidant DLTP, antioxidant 1076, the antioxidant CA; Described metal passivator is selected from a kind of in oxalic acid two hydrazides, benzotriazole, the salicylidene quadrol.
9. according to the preparation method of the described wire cable material of the arbitrary claim of claim 1 to 8, it is characterized in that: this method may further comprise the steps:
(1) 60～80 parts of base materials with 10～20 parts of compositions of ethylene of Vilaterm was mixed in whisking appliance 2～5 minutes; With stirring 3～8 minutes in 20～40 parts of coated ammonium polyphosphates, 10～20 parts of tetramethylolmethanes, 8～15 parts of nitrogen flame retardants, 50～90 parts of composite inorganic fire retardants, 2～5 parts of lubricants, 5～10 parts of adding whisking appliances of compatilizer, with above-mentioned mixed component and all the other components: 0～3 part of crosslinking coagent, 0.2～0.8 part in static inhibitor, 0.3～0.6 part in anti-aging agent, 0～0.3 part of auxiliary antioxidant, 0～0.5 part of restir of metal passivator mixed 3～8 minutes;
(2) mediated 1～2 hour at 190～210 ℃, the kneader rotating speed is 640～980r/min, and pulverizes;
(3) again with above-mentioned blending ingredients through forcing machine extrude pellet, be coated in then on the electric wire, carry out irradiation from the two sides of electric wire with rumbatron again and make it to take place crosslinking reaction and form.
10. method according to claim 9 is characterized in that: described forcing machine L/D=20: 1～25: 1, and rotating speed 50～70r/min; Extrusion temperature: 120～140 ℃ of feed zones, 160～180 ℃ of compression sections, 210～230 ℃ of homogenizing zones, 220～230 ℃ of heads.
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